Pneumatic Roof Scraper

ABSTRACT

A pneumatic shingle removing machine, actuated by a linear cylinder, for the purpose of removing shingles from a roof. The machine includes a pneumatic cylinder connected to the deflector shield which moves the attached ripper teeth forward under the shingles while the operator immobilizes the frame by standing on the foot hold down with ratchet teeth on the bottom. 
     On the reverse stroke of the cylinder, the operator removes his foot from the hold down allowing the frame to ratchet forward for the next stroke. 
     An air valve is attached to the T-Handle and hoses are connected to the pneumatic cylinder for the purpose of directing air pressure for forward and reverse motion. 
     The deflector shield rolls the shingles up and forward as the machine is manipulated forward down the roof. 
     The ripper teeth are angled down to stay under the shingles, and two stabilizer rods held in the tubes, permanently affixed to the frame, with linear bearings, maintain level stability.

CROSS-REFERENCE TO RELATED APPLICATIONS

U.S. Pat. No. 6,467,377; U.S. Pat. No. 4,858,503; U.S. Pat. No.5,741,047; U.S. Pat. No. 4,691,439; U.S. Pat. No. 4,709,479; U.S. Pat.No. 5,863,100; and U.S. Pat. No. Des. 327,206.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not Applicable

THE NAMES OF THE PARTIES TO A JOINT RESEARCH AGREEMENT

Not Applicable

INCORPORATION-BY-REFERENCE OF MATERIAL SUBMITTED ON A COMPACT DISC

Not Applicable

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to shingle removing machines and moreparticularly pertains to a new pneumatic shingle removing machine forfacilitating the removal of roofing shingles from under-layment.

2. Description of the Prior Art

The use of stripping machines is known in the prior art. Morespecifically, stripping machines heretofore devised and utilized areknown to consist basically of familiar, expected and obvious structuralconfigurations, notwithstanding the myriad of designs encompassed by thecrowded prior art which have been developed for the fulfillment ofcountless objectives and requirements. Known prior art includes U.S.Pat. No. 6,467,377; U.S. Pat. No. 4,858,503; U.S. Pat. No. 5,741,047;U.S. Pat. No. 4,691,439; U.S. Pat. No. 4,709,479; U.S. Pat. No.5,863,100; and U.S. Pat. No. Des. 327,206.

While these devices fulfill their respective, particular objectives andrequirements, the aforementioned patents do not disclose a new pneumaticshingle removing machine. The inventive device includes a T-handle withan air valve, coupled to a pneumatic cylinder by an air hose assembly,the aforementioned pneumatic cylinder coupled to the deflector shieldwith attached ripper teeth, which is selectively extendable relative tothe frame for facilitating the removal shingles.

In these respects, the pneumatic shingle removing machine according tothe present invention substantially departs from the conventionalconcepts and designs of the prior art, and in so doing provides anapparatus primarily developed for the purpose of facilitating theremoval of roofing shingles from under-layment.

SUMMARY OF THE INVENTION

In view of the foregoing disadvantages inherent in the known types ofstripping machines now present in the prior art, the present inventionprovides a new pneumatic shingle removing machine construction whereinthe same can be utilized for facilitating the removal of roofingshingles from under-layment.

The general purpose of the present invention, which will be describedsubsequently in greater detail, is to provide a new pneumatic shingleremoving machine apparatus and method which has many of the advantagesof the stripping machines mentioned heretofore and many novel featuresthat result in a new pneumatic shingle removing machine which is notanticipated, rendered obvious, suggested, or even implied by any of theprior art stripping machines, either alone or in any combinationthereof.

To attain this, the present invention generally comprises a T-handlewith an air valve, coupled to a pneumatic cylinder by an air hoseassembly, the aforementioned pneumatic cylinder coupled to the deflectorshield with attached ripper teeth, which is selectively extendablerelative to the frame for facilitating the removal shingles.

There has thus been outlined, rather broadly, the more importantfeatures of the invention in order that the detailed description thereofthat follows may be better understood, and in order that the presentcontribution to the art may be better appreciated. There are additionalfeatures of the invention that will be described hereinafter and whichwill form the subject matter of the claims appended hereto.

In this respect, before explaining at least one embodiment of theinvention in detail, it is to be understood that the invention is notlimited in its application to the details of construction and to thearrangements of the components set forth in the following description orillustrated in the drawings. The invention is capable of otherembodiments and of being practiced and carried out in various ways.Also, it is to be understood that the phraseology and terminologyemployed herein are for the purpose of description and should not beregarded as limiting.

As such, those skilled in the art will appreciate that the conception,upon which this disclosure is based, may readily be utilized as a basisfor the designing of other structures, methods and systems for carryingout the several purposes of the present invention. It is important,therefore, that the claims be regarded as including such equivalentconstructions insofar as they do not depart from the spirit and scope ofthe present invention.

Further, the purpose of the foregoing abstract is to enable the U.S.Patent and Trademark Office and the public generally, and especially thescientists, engineers and practitioners in the art who are not familiarwith patent or legal terms or phraseology, to determine quickly from acursory inspection the nature and essence of the technical disclosure ofthe application. The abstract is neither intended to define theinvention of the application, which is measured by the claims, nor is itintended to be limiting as to the scope of the invention in any way.

It is therefore an object of the present invention to provide a newpneumatic shingle removing machine apparatus and method which has manyof the advantages of the stripping machines mentioned heretofore andmany novel features that result in a new pneumatic shingle removingmachine which is not anticipated, rendered obvious, suggested, or evenimplied by any of the prior art stripping machines, either alone or inany combination thereof.

It is another object of the present invention to provide a new pneumaticshingle removing machine which may be easily and efficientlymanufactured and marketed.

It is a further object of the present invention to provide a newpneumatic shingle removing machine which is of a durable and reliableconstruction.

An even further object of the present invention is to provide a newpneumatic shingle removing machine which is susceptible of a low cost ofmanufacture with regard to both materials and labor, and whichaccordingly is then susceptible of low prices of sale to the consumingpublic, thereby making such pneumatic shingle removing machineeconomically available to the buying public.

Still yet another object of the present invention is to provide a newpneumatic shingle removing machine which provides in the apparatuses andmethods of the prior art some of the advantages thereof, whilesimultaneously overcoming some of the disadvantages normally associatedtherewith.

Still another object of the present invention is to provide a newpneumatic shingle removing machine for facilitating the removal ofroofing shingles from under-layment.

Yet another object of the present invention is to provide a newpneumatic shingle removing machine which includes a T-handle with an airvalve, coupled to a pneumatic cylinder by an air hose assembly, theaforementioned pneumatic cylinder coupled to the deflector shield withattached ripper teeth, which is selectively extendable relative to theframe for facilitating the removal shingles.

Still yet another object of the present invention is to provide a newpneumatic shingle removing machine that has a compact form factorincreasing the maneuverability of the machine.

Even still another object of the present invention is to provide a newpneumatic shingle removing machine that reduces the potential for injuryby reducing the repetitive operations necessary to remove shingles.

These together with other objects of the invention, along with thevarious features of novelty which characterize the invention, arepointed out with particularity in the claims annexed to and forming apart of this disclosure. For a better understanding of the invention,its operating advantages and the specific objects attained by its uses,reference should be made to the accompanying drawings and descriptivematter in which there are illustrated preferred embodiments of theinvention.

DESCRIPTION OF THE VIEWS OF THE DRAWINGS

FIG. 1. Shows a perspective view of the Pneumatic Roof Scraper in theretracted position.

FIG. 2. Shows a perspective view of the Pneumatic Roof Scraper in theextended position.

DETAILED DESCRIPTION OF THE INVENTION

This invention is a pneumatic shingle removing machine, intended forstripping off old shingles from a building roof which is to bere-roofed. It incorporates a linear cylinder [1], intended foractuation.

This invention is comprised of a pneumatic linear cylinder [1] connectedto a deflector shield [2] which, in turn, is connected to ripper teeth[3] intended to be propelled forward under the shingles while theoperator immobilizes the frame by standing on the foot hold down [4]which is equipped with ratchet teeth [5] on the bottom. The normalweight of the operator forces the ratchet teeth [5] into the roofunder-layment, creating a temporary anchor point with which to force thedeflector shield [2] and attached ripper teeth [3] under the shingles.

This invention advances forward when the pneumatic cylinder [1] statedpreviously, is retracted and the weight of the operator is removed fromthe foot hold [4]. The ratchet teeth [5] slip along the under-laymentuntil the cylinder [1] is fully retracted.

This invention incorporates an air valve [6] which is attached to theT-handle [7] the operator uses to guide the machine. The valve [6] isconnected to the linear cylinder [1] via air hoses, intended to directthe air pressure for forward and reverse motion. The deflector shield[2] rolls the shingles up and forward as the machine is manipulateforward down the roof.

This invention incorporates ripper teeth [3] which are angled down tostay under the shingles. Two stabilizer rods [8] are held in tubes [9],permanently fixed to the frame, with linear bearings [10], maintaininglevel stability.

This invention is intended to remove shingles in a timely and efficientmanner compared to the current hand removal methods.

1. A pneumatic shingle removing machine, actuated by a linear cylinder[1], for the purpose of stripping off old shingles from building roof tobe re-roofed.
 2. The machine includes a pneumatic cylinder [1] connectedto the deflector shield [2] which moves the attached ripper teeth [3]forward under the shingles while the operator immobilizes the frame bystanding on the foot hold down [4] with ratchet teeth [5] on the bottom.3. On the reverse stroke of the cylinder [1], the operator removes hisfoot from the hold down [4] allowing the frame to ratchet forward forthe next stroke.
 4. An air valve [6] is attached to the T-Handle [7] andhoses are connected to the pneumatic cylinder [1] for the purpose ofdirecting air pressure for forward and reverse motion. The deflectorshield [2] rolls the shingles up and forward as the machine ismanipulated forward down the roof.
 5. The ripper teeth [3] are angleddown to stay under the shingles, and two stabilizer rods [8] held in thetubes [9], permanently affixed to the frame, with linear bearings [10],maintain level stability.
 6. Shingle removal will occur in a timely andefficient manner compared to current hand removal methods.